WorksheetsAtoms and the Periodic Table Post Test
Total questions: 25
Worksheet time: 25mins
Atoms have no electric charge because they
have an equal number of charged and non charged particles
have neutrons in their nuclei
have an equal number of electrons and protons
have an equal number of neutrons and protons
Which subatomic particle has a negative charge
proton
neutron
alpha particle
electron
Using your periodic table and your knowledge of atomic structure, identify this neutral atom of one of the following elements
Boron
Lithium
Nitrogen
Calcium
Which of the following elements have both metallic and nonmetallic properties
Ar
Ge
Mg
S
The diagram below shows the relative locations of five unidentified elements in the periodic table elements E, X, G, J, and L. Element X has an atomic number of "z". Which unidentified element has atomic number "z + 2"?
Element E
Element G
Element J
Element L
Particle models of four different types of matter are shown in the diagram below. Identify which of the models above BEST represents a pure compound.
Model 1
Model 2
Model 3
Model 4
Which of the following identifies the number and location of protons in a Lithium atom?
3 protons, located in the nucleus
7 protons, located in the nucleus
3 protons, located in the atomic orbital
7 protons located in the atomic orbital
Metals in group 1 on the periodic table most commonly form which type of ion?
-2 ion
-1 ion
+ 1 ion
+2 ion
A scientist is measuring the mass of two boron (B) atoms. One atom has a mass of 10 amu. The other atom has a mass of 11 amu. The image to the right is a model of a boron atom with a mass of 11 amu. Which subatomic particles needs to be removed to represent a boron atom with an atomic mass of 10 amu?
Particle L
Particle M
Particle N
Particle P
Carbon-14 has an atomic mass of 14 and an atomic number of 6. What does this information reveal about the atoms of carbon-14?
They contain more protons than neutrons
They naturally have a net negative charge
Carbon-14 is an isotope of Carbon and has more neutrons than protons
Carbon-14 is an isotope of Carbon and has more electrons than protons.
Which elements in Figure 5-2 have the same number of valence electrons?
Na and Be
F and I
He and Na
C, N and F
Which element in Figure 5-2 is a noble gas?
He
Na
I
V
Which element in Figure 5-2 is a transition metal?
He
Na
Be
V
Which of the elements in Figure 5-2 are in the same period?
Be, C, N and F
C, N, F, I and He
F and I
Na, Be, and V
At room temperature all elements in group 18 are
Liquids
Gases
Plasmas
Solids
What are the only two elements on the periodic table that are liquid at room temperature?
Barium and Mercury
Bromine and Magnesium
Magnesium and Barium
Mercury and Bromine
As you move from left to right across a PERIOD, the number of valence electrons _______.
stays the same
increases then decreases
increases
decreases
The table provides some information about an unidentified element
a metal in group 1 (1A)
a metal in group 14 (4A)
a nonmetal in period 4
a metalliod in period 5
In an atomic model that illustrates a nucleus and electron cloud, where is the positive charge located?
It is concentrated in the center of an atom
It is located in the space outside the nucleus
It is spread evenly throughout an atom
It is concentrated at multiple sites in an atom
Which of the following would be the correct electron configuration for the element Sulfur?
Energy level 1=2
Energy level 2=8
Energy level 3=16
Energy level 1=2
Energy level 2=8
Energy level 3=6
Energy level 1=2, Energy level 2=8, Energy level 3=18
Energy level 1=6, Energy level 2=8, Energy level 3=2
An isotope of Barium is Ba-137. How many protons and neutrons does this isotope have?
56 protons
137 neutrons
56 protons
56 neutrons
56 protons
81 neutrons
81 protons
56 neutrons
A hydrogen ion has lost is electron and has ony one proton. What is its new charge?
+1
0
-1
-2
A certain atom has 22 protons, 22 electrons, and 26 neutrons. Its mass number is
26
44
22
48
Atoms have no electric charge because they
have an equal number of charged and non charged particles.
They have an equal number of electrons and protons.
They have neutrons in the nuclei.
They have an equal number of neutrons and protons.
Most calcium atoms have an atomic number of 20 and a mass number of 40, but some calcium atoms have a mass number of 48. What term is used to describe these two kinds of calcium atoms?
isotopes
metals
metalloids
radioactive elements
